GHRs and Greaters

Sorry if this has been asked before recently, but I've been finding a lot of conflicting/inconclusive answers around the 'net and in-game...

Basically, what I am wondering is simply this: Can an epic greater essence e.g. a searing flamesource, drop into your rift loot bag upon completing a GHR, but not as the one with rights to the chest? I know this can happen in SH62's, but I ask because GHR groups seem more prevalent, and also as it seems a little more difficult and perhaps even unfair to run my own "reserve" group as I cannot tank.

Would also be curious to know if it's possible that they can drop in GH1/2. Again, I've read reports of it occurring however it is trivial for me to solo a GH2 with a pet build, so I have my doubts here.

EDIT: I'm a Mage, hence why I noted that I cannot actually tank the planarchs.

Sorry if this has been asked before recently, but I've been finding a lot of conflicting/inconclusive answers around the 'net and in-game...

Basically, what I am wondering is simply this: Can an epic greater essence e.g. a searing flamesource, drop into your rift loot bag upon completing a GHR, but not as the one with rights to the chest? I know this can happen in SH62's, but I ask because GHR groups seem more prevalent, and also as it seems a little more difficult and perhaps even unfair to run my own "reserve" group as I cannot tank.

Would also be curious to know if it's possible that they can drop in GH1/2. Again, I've read reports of it occurring however it is trivial for me to solo a GH2 with a pet build, so I have my doubts here.

EDIT: I'm a Mage, hence why I noted that I cannot actually tank the planarchs.

Yes, you have a chance of getting them also in your rift loot bag, just like from strongholds. On what can drop it, I've seen following dropping a greater:
GH3+
SH60+
Dendrome foothold, normal type (money-shot!)
The destructible part of a SH62 which the robot helps to dispose of.

to answer your question, YES. even if you are not using ur lure, REGARDLESS of GH 1-5, you have a chance to get a greater in your loot bag. I got a tanking greater(EPIC, not RARE), off a GH1 during a dendrome GH event. And i also got a CP greater, epic, from a SH60. Chances are LOW, but you will still able to get it.

to answer your question, YES. even if you are not using ur lure, REGARDLESS of GH 1-5, you have a chance to get a greater in your loot bag. I got a tanking greater(EPIC, not RARE), off a GH1 during a dendrome GH event. And i also got a CP greater, epic, from a SH60. Chances are LOW, but you will still able to get it.

I need to point out that both of those were in Dendrome for you. I'm highly sceptical on greaters dropping from a GH1 in Ashora.